Method of graphical manipulation in a potentially windowed displ

Details Method of graphical manipulation in a potentially windowed displ Method of graphical manipulation in a potentially windowed displ

1988-11-27

1989-10-10

Lall, Parshotam S.

Boots, shoes, and leggings

364521, 340750, 340724, G06F 314, G09G 102

Patent

active

048736520

ABSTRACT:
A method is disclosed which enhances the ability of digital computer system to manage displays, especially in an environment where a single physical display supports a plurality of logical displays (windows). Machine-language instructions are provided which, in conjunction with user-supplied form descriptors describing each of the windows, enable management and generation of display image data to be performed directly by the processing hardware of the digital computer system, eliminating any need for intervening interpretive software. Data computed from form descriptors may be encached, enhancing the speed of consecutive operations on windows. Graceful creation is enhanced by permitting processing control to escape to software fault handlers.

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